7-Aethyl-1,4,5,6,7,8,9,10-octahydro-2H-3,7-methano-azacycloundecino[5,4-b]indol, (+)-quebrachamine, (-)-quebrachamine, Quebrachamin, 11-ethyl-5,8,9,10,11,12,13,14-octahydro-6H-7,14-diaza-7,11-methano-cycloundeca[a]indene, 2,12-Didehydro-12,19-seco-aspidospermidin